# Copyright (c) 2019 Alexander Todorov <atodorov@MrSenko.com>

# Licensed under the GPL 2.0: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html

"""
    This module implements integration with Kiwi TCMS own bug tracking system!
"""

from django.template.loader import render_to_string

from tcms.bugs.views import New
from tcms.bugs.models import Bug
from tcms.issuetracker.base import IssueTrackerType
from tcms.core.contrib.linkreference.models import LinkReference


class KiwiTCMS(IssueTrackerType):
    """
        Support for Kiwi TCMS. Required fields:

        :base_url: the FQDN of the current instance. Used to match against defect URLs.

        The rest of the fields are not used!
    """

    def _rpc_connection(self):
        return None

    def is_adding_testcase_to_issue_disabled(self):  # pylint: disable=invalid-name, no-self-use
        return False

    def details(self, url):
        """
            Provide more details from our own bug tracker!
        """
        bug_id = self.bug_id_from_url(url)
        bug = Bug.objects.get(pk=bug_id)

        result = {
            'title': bug.summary,
            'description': render_to_string('include/bug_details.html',
                                            {'object': bug})
        }

        return result

    def add_testexecution_to_issue(self, executions, issue_url):
        """
            Directly 'link' BUG and TE objects via their m2m
            relationship.

            .. note::

                This method takes extra steps to safeguard from
                bogus input b/c it is called unconditionally from
                API method ``TestCase.add_link()``!
        """
        try:
            bug_id = self.bug_id_from_url(issue_url)
        except AttributeError:
            return

        try:
            bug = Bug.objects.get(pk=bug_id)
        except Bug.DoesNotExist:
            return

        for execution in executions:
            bug.executions.add(execution)

    def report_issue_from_testexecution(self, execution, user):
        """
            Create the new bug using internal API instead of
            going through the RPC layer and return its URL
        """
        data = {
            'reporter': user,
            'summary': 'Test case failure: %s' % execution.case.summary,
            'product': execution.run.plan.product,
            'version': execution.run.product_version,
            'build': execution.build,
            'text': self._report_comment(execution),
            '_execution': execution,
        }

        bug = New.create_bug(data)

        # link Bug to TE via m2m
        bug.executions.add(execution)

        # and also add a link reference that will be shown in the UI
        LinkReference.objects.get_or_create(
            execution=execution,
            url=bug.get_full_url(),
            is_defect=True,
        )

        return bug.get_full_url()

    @classmethod
    def bug_id_from_url(cls, url):
        """
            Strips the last '/' and returns the PK
        """
        return super().bug_id_from_url(url.strip('/'))
